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CVE PROGRAM SOURCE RECORD4.0 Medium

CVE-2026-53945

Ghost: Server-side request forgery via DNS rebinding in external request handling

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Status
Published
Published
Updated
Assigning organization
GitHub_M

Description

Ghost is a Node.js content management system. From 6.0.9 until 6.21.1, Ghost’s private-IP check for outbound HTTP requests could be bypassed via DNS rebinding, allowing an attacker to coerce the Ghost server into reaching hosts on internal networks through features that issue external fetches. This vulnerability is fixed in 6.21.1.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

TryGhost Ghost

  • >= 6.0.9, < 6.21.1affected

References